Splice-bar for railway-rails.



T. E. CALVERT, DECD.

APPLICATION FIL ED APR/22.19.

Patented 001;; 1, 191&

PlflIS It will be seen that by means of the above construction the lower wedging surface 20 has substantially the same area as the upper wedgingsurface 19, but it is preferable to make the lower wedging surface somewhat larger in area than the upper wedging surface, and the lower surface is therefore made slightly greater in width than the surface 19. Since-the wedging or fishing surfaces are approximately equal in area, the Wear on the upper and lower surfaces will take place at substantially the same rate, so that after continued use of the angle bar, and after tightening of the nuts 18 on the bolts 16, the angle bars will be maintained with their lateral surfaces 11 in substantially vertical planes, as when first adjusted on the rail.

In order to secure the operation of .the splice bars as above described, the bolting apertures 15 are located so that their center lines 25 are below what has hitherto been considered the proper position for the cen ter lines of the bolting apertures, so as to equalize the pressure of the bolts on the upper and lower wedging surfaces, whereby the pressure per unit area on those surfaces will be un form. However, since it is desirable to make the lower wedging surface of slightly greater extent than the upper wedging surface, the center lines of the bolting aperture are located slightly below the line 26,

which is midway between the horizontal planes 27 passing through the longitudinal center lines of the wedging surfaces, the location of these last-named center lines being indicated by the transverse lines 28.

Thus a relatively greater portion of the pressure-exerted by the bolts is placed upon the lower wedging surfaces of increased area, thereby securing a uniform pressure per unit of area.

The location of the bolts 16, below the positions previously occupied by similar fastening; means, makes it possible to lace an increased quantity of ,metalin the ead 12 of the angle bar, thereby increasing the resistance of the bar to the stresses exerted. upon it. .In the form of the invention shown in the-drawings the head is enlarged inwardly from the web 13, as shown at 12, the inner surface 12 of the head being spaced from the web 10 of the rail, and

the lower surface12 being spaced, preferably, fromthe bolts 16. The outer surface of the splice bar inclines downwardly from the rail head, as shown, at 12 ,;from the {boundary 21 of the upper wedging surface to the vertical surface 11 of the angle bar.

i ispaced outwardly the rail head, so that a relatively, great enlargement of the head of the; angle bar is thin from the web outwardly permitted inwardly-of the Web, thereby effecting the concentration of a large portion of the metal of the bar as far as possible from the center of gravity and neutral axis of the bar. At the lower end of the Web 13, the foot 14 of the angle bar projects inwardly, as shown at 1 1, in order to extend the lower wedging surface inwardly as far wardly away fromY-the rail, as indicated by the line 30-430, which divergesfrom, the plane 3l31 of the. upper surface of the rail base. This inclined portionof; the under surface of the angle bar terminates along the boundary 32,.and from this boundary outwardly thesportion of the under. surface of the anglelbar liessubstantially parallel to the plane 3 l' 3l gf the-upper surface of the railbase. Theparallel portion 33 of said under'surface terminates at'the downwardly extending shoulder 34, which 18 located outwardlyfrom the edge of the rail baseand WhiQli'is formed on the enlarged flange 35 which extends along the lateral edge of the angle bar. This con struction permits the formation of a lower wedging or fishing surface having an area ubstantially-equalto that of the upper wedglng surface and brings the lower bearing of the angle bar nearer the web'of the rail wherethe bearingis most'rigid, while at the same time preventing a decrease in the strength of the angle bar. 1

The footof the angle bar is relatively to the'point 36, where. it is engaged by the undersurface of the head 37 0- one of thea'railspikes 37, whichpass through piking slots or apertures 38 formed. in the angle bar along substantially the same thickness as. the web 13 thereof and it serves to permit. the turning of the guts-. 18 'gnjthenbolts 15, which occupy positions relatively olose to;the foot portions of the anglebars as ,compared with other forms of. angle bars;- heretofore used. For;1nstance,;1f the nuts 18 are square in cross section, theylyvill during the turning It will be observed that the .web13 is located outwardly from the web o'fthe rail acont fa le i y extrem tpps o sh' s indicated. byt e dotted lines -18'.,,so. that if the foot portionsof the angle bars ,were relatively! thick the necessary adjustment of the nuts on, the bolts would prevent thelocation of the bolting apertures in the manner pressure per 'd'gi ngfsurf aees. of [j equal, pressures per nni cf are up l we qw dging surfec ekiiess, o that t s; thereof "makes a -lesser eherizontal than the upperf tively thin portion ad:

anglekber. I The metal been. laced in .the

oot, beneath thefsu'rf vthe Ve much ordinari y usedi 'A1th0ughTI'havesh bodiinent of "the' jinve illustration, it wi11b maybe embodiedxin othe" ong lthe lateralwedge of Ith forming a thickened rib I removed as far as pose nigh t v e area ofv contact v of the h the railspike'si so? that the on the spikes while 1 preventing lengthement Of the rail willbe decreased,

lthejll'en'gthf of service" thereof c0rre"-' spendingl increased; By makinglthepcr t'lon fof 't e footie inwardly of the edge of thejrail base-relatively thin, it is p'ossihle ave the. spikes penetrate thev ties a. eeter' distenee t van gl sly in use; {so that the the splice is increased,

bendin moment I 011'- I the erted by" the eteral pressure of correspondingly decreased.

v flici-eg'omgdescription it willnhe' Ten but bi providing", an' enlargfld Of'hthe' foot" of fl bar, gexpormi hen with, the. other forms i arting rpm the scope. defined; the append -e i i ei l ay l pjlw Y0 shaped cross section heving a wehaen 1 "head" above-said web which is. enlarg d 5 the 'side'toward the lweb'eftheraiL td hi the Splice bar i'sflattac d, said" her he ngffa, foot}, member whi same thickness as the web of I theb the Web of the hrail eutwerdlyftp" up jace'nfl to the edgeof the rail; base,

" which point; outwardly the feet; portion: 9 thejber' is thickened byfljfermingits upper Y surfacefwithja lesserangle to the horizontal 7 er surfacebffthe portion there of nearer the web of-the rail." 1 i QJ'Ii-L railwa rail splice barhavin 'e foe p lljgwhic contact "w h thef 0 1 the rail adjacent the which! is; then spaced wardlyfef said rail, the ewer surf said foot portien termiiietin is in emetal 1n. the er tmtedTnfperts which, are}? -d stent froinithe center 10f" igravl y whereby theresistance of y the? v stresses exerted upon/it is "greatly ,"asz- ;Wi1l.] be; apparent-.7: to

heart, revision ur aces of japproxiportion ,thereof nearert e w testimeny' I h mbihacion'withbou: dthetthe beltsfpass f exertflsubstant ally 15; obtained to use eaten, b addressing the e 3 wash z cm flff is 0i substantially he 

